三相四线制电度表进表的零线突然断了会有什么后果？ 三相四线制电网运行时零线突然断开会不会烧坏用电设备
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会导致后面的单相用电设备的电压变为380V！！！220V的用电器会烧毁！这就是断零故障、事故！应尽量避免！电流无法回到中性点，断电了
电表不能计费了。
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